Corn Sugar (Dextrose)

Corn Sugar (Dextrose)

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Corn Sugar, or dextrose, is used to "prime" your beer to produce natural carbonation in the bottle. "Priming" is the act of adding a small amount of fresh fermentable sugar to the beer just before bottling so that the residual yeast will consume it and produce carbonation in the sealed bottle. We recommend corn sugar for this purpose because it is easy for the yeast to consume and has a neutral flavor profile, meaning it will leave your beer tasting the way you designed it!
Use 4 or 5 oz of corn sugar to prime 5 gallons prior to bottling. Dissolve in 1-1.5 pints of water and boil for 5 minutes to sanitize prior to mixing with your beer.
If your fermentation ended at 68F it will retain about 1 volume of CO2. If it ended at 50F it will retain about 1.2 volumes of CO2. 4 oz in 5 gallons adds 1.48 Volumes of CO2. 5 oz adds 1.84 volumes of CO2 to 5 Gallons.
Suggested CO2 Levels:
  • Cask Ales 1.5 to 2.0
  • Ales 2.3 to 2.6
  • Lagers 2.4 to 2.6
  • Highly Carbonated Beers 3.0+
    • Champagne is 6.3 and requires a special bottle.
To convert from volumes to g/L:
  • multiply volumes x 1.96.
Can also be used to boost your Original Gravity without impacting the beer's flavor profile. Adds 1.042 points per pound per gallon (PPG) to your specific gravity.
  • Dextros Needed (lbs.) = (Actual Volume * (Target Gravity – Actual Gravity)) / 0.042
Community Q&A

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MoreFlavor Store
James F on Jul 9, 2020
Works great for my bottle Co2
Tom W on Jul 8, 2020
James F on Jul 9, 2020
Need it for a recipe
Joseph F on Jul 9, 2020
Works great for my bottle Co2
Tom W on Jul 8, 2020
Bottle conditioning
S L on Jul 2, 2020
Mark E L on Jun 27, 2020
Carbonate beer.
Eron T on Jun 26, 2020
I like carbonation
Anthony M on Jun 25, 2020
Need to bottle
Mitchell O on Jun 24, 2020
For the cider
Sam S on Jun 23, 2020
To add some sparkle
NANCY P on Jun 23, 2020
Priming Sugar. 5 oz has been slightly over-carbonating my bottles
Sam C on Jun 19, 2020
I like corn
Kevin H on Jun 19, 2020
a little more fiz is nice
Charlie S on Jun 19, 2020
keep my supply stocked up
Gregory H on Jun 18, 2020
Gus A on Jun 17, 2020
Use it before and is ok.
Dan C on Jun 17, 2020
Priming sugar
Daniel A on Jun 17, 2020
I need more
Alan C on Jun 16, 2020
James G on Jun 16, 2020
needed for recipe Julius treehouse clone
Sea Rogers W on Jun 16, 2020
I NEED carbonation!
Philip B on Jun 16, 2020
For priming
Ronald P on Jun 16, 2020
trying to make hard seltzer
michael m on Jun 11, 2020
For carbonation
Rodrigo G on Jun 10, 2020
needed and had success with first time using
Marshall J on Jun 10, 2020
need it
James B on Jun 9, 2020
Needed primer for bottling
Devin Diedrich on Jun 9, 2020
bottle carbonation
Roger B on Jun 7, 2020
to carbonate
Bob M on Jun 6, 2020
I think I need this
Jerry Mack on Jun 4, 2020
Dependable for bottle conditioning
Michael V on Jun 4, 2020
Used it before and is good.
Dan C on Jun 3, 2020
Priming sugar
VINCENT B on Jun 3, 2020
Need dextrose
Mike M on Jun 2, 2020
why not
Zachary A on Jun 1, 2020
to carbonate beer in bottle
Ariel Zelaya on Jun 1, 2020
Specific recipe
Eric T on May 30, 2020
Bottle priming
Brian C on May 30, 2020
Needs it
John K T on May 29, 2020
To increase the original gravity of my homebrews/improve the body.
Chris L on May 28, 2020
Michael F on May 28, 2020
My go to for priming sugar in bottling
Micky Baeza on May 27, 2020
Brewing a NEIPA
Robert S on May 27, 2020
priming sugar
Carl S on May 26, 2020
Need it
Justin F on May 26, 2020
Graham P on May 26, 2020
Priming sugar
Adam H on May 25, 2020
Troy A L on May 23, 2020
Just needed some
Jeffrey M on May 23, 2020
Recommended by a friend
Jeremy K on May 23, 2020
Need it for a recipe
Joseph F on Jul 9, 2020
Bottle conditioning
S L on Jul 2, 2020

4.9 / 5.0
26 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Corn Sugar
It was indeed corn sugar
July 7, 2020
1 month ago
This Corn Sugar was Sweeeeeet
This corn sugar worked exactly as expected. Perfect in my Cali IPA
June 12, 2020
1 month ago
corn sugar
worked as advertised
May 27, 2020
2 months ago
corny and sugary,finely grained,the yeast seemed to like it but declined complex comments. They just eat it up and bubble a bit. I asked them for a thumbs up or thumbs down but they don't have thumbs. They eat it much faster than they do other more complicated forms of glucose. No detectable flavor.
May 18, 2020
2 months ago
What can I say, it’s corn sugar. Very versatile for multi purposes like more ABV
May 16, 2020
2 months ago
We decided 1 star a pound was a 5 pound bag. It was what we asked for!
May 11, 2020
2 months ago
corn sugar
This corn sugar was excellent in bottle conditioning my American IPA
May 11, 2020
3 months ago
Good Value
This dissolves easily, so is great for priming or an additive to boost ABV.
May 6, 2020
2 months ago
Work out great for brewing
May 6, 2020
2 months ago
works great
Always enough sugar to trigger good carbonation. Price is also more reasonable than another major online brewing supply company.
May 4, 2020
3 months ago